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net: determine if packets can be sent before net queue deliver packets

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Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Zhi Yong Wu 2012-07-24 16:35:18 +01:00 committed by Stefan Hajnoczi
parent 86a77c3858
commit 691a4f3a95
4 changed files with 5 additions and 17 deletions
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9
net/queue.c
View File

@ -176,8 +176,8 @@ ssize_t qemu_net_queue_send(NetQueue *queue,
{
ssize_t ret;
if (queue->delivering) {
return qemu_net_queue_append(queue, sender, flags, data, size, NULL);
if (queue->delivering || !qemu_can_send_packet(sender)) {
return qemu_net_queue_append(queue, sender, flags, data, size, sent_cb);
}
ret = qemu_net_queue_deliver(queue, sender, flags, data, size);
@ -200,8 +200,9 @@ ssize_t qemu_net_queue_send_iov(NetQueue *queue,
{
ssize_t ret;
if (queue->delivering) {
return qemu_net_queue_append_iov(queue, sender, flags, iov, iovcnt, NULL);
if (queue->delivering || !qemu_can_send_packet(sender)) {
return qemu_net_queue_append_iov(queue, sender, flags,
iov, iovcnt, sent_cb);
}
ret = qemu_net_queue_deliver_iov(queue, sender, flags, iov, iovcnt);

7
net/slirp.c
View File

@ -97,13 +97,6 @@ static void slirp_smb_cleanup(SlirpState *s);
static inline void slirp_smb_cleanup(SlirpState *s) { }
#endif
int slirp_can_output(void *opaque)
{
SlirpState *s = opaque;
return qemu_can_send_packet(&s->nc);
}
void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
{
SlirpState *s = opaque;

5
slirp/if.c
View File

@ -177,11 +177,6 @@ void if_start(Slirp *slirp)
}
while (ifm_next) {
/* check if we can really output */
if (!slirp_can_output(slirp->opaque)) {
break;
}
ifm = ifm_next;
from_batchq = next_from_batchq;

1
slirp/libslirp.h
View File

@ -25,7 +25,6 @@ void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds,
void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
/* you must provide the following functions: */
int slirp_can_output(void *opaque);
void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len);
int slirp_add_hostfwd(Slirp *slirp, int is_udp,